A spoiler's wings come in different forms depending on the style and material of the vehicle. The most common material is steel, aluminum, and aluminum are heavier and lighter than steel and are heavier. The aerodynamics of the wings make them suitable for any car driving.
A rubber spoiler is the most common type of spoilers and since it is less resistant to water and engine damage. While a rubber spoiler is generally durable, plastic is a less common material and it is less resistant to wear.